Remove chuck?

DEWALT DW907
my chuck has stuck HELPthere was bit stuck in but got it out after pulling and wingling, any how now the bit is out i cant move the the chuck to losen or tighten i need to get allen key i know to take it off but read it says tighten a larger allen key but as t does not move what to do

tony

TONY TAYLOR
January 2010

-Take a large Allen wrench. Tighten down in the old chuck (the chuck has right handed threads).
-Lay the tool down on its side.
-Take a hammer and hit the other end of the Allen wrench several times until the chuck comes off (some of them are on very tight).
-If it doesn't come off, then spray WD-40 down inside the chuck and let it sit overnight or for a few hours and then try it again.

Don- www.toolsandmachinery.com
December 2009